<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Make Controller Kit - Firmware API: webclient.c Source File</title>
<link href="mt_doxygen.css" rel="stylesheet" type="text/css" />
<link href="../resources/mt_doxytabs.css" rel="stylesheet" type="text/css" />
<style type="text/css">
<!--
.header {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 12pt;
	color: #222222;
}
-->
</style>
</head>

<body>
<table width="800" border="0">
    <tr>
      <td colspan="3">
        <form method="get" action="http://www.google.com/search">
          <div align="right">
            <input type="text"   name="q" size="25"
              maxlength="255" value="" />
            <input type="submit" value="Search" />
            <input type="hidden" name="sitesearch" value="makingthings.com/ref/firmware/html" />
          </div>
        </form>
       </td>
    </tr>
    <tr>
      <td><div align="center"><a href="http://www.makingthings.com">
				<img src="../resources/logo_brown_medium.png" alt="MakingThings"
									width="200" height="78" border="0" align="middle" longdesc="http://www.makingthings.com" /></a></div></td>
				<td><div align="center" class="header">
      		Make Controller Kit <br />
          Firmware API
      </div></td>
      <td><div align="center"><a href="http://www.makezine.com">
					<img src="../resources/make_logo.png" alt="MAKE Zine" 
										width="164" height="73" border="0" align="middle" longdesc="http://www.makezine.com" /></a></div></td>
    </tr>
</table>
</body>
</html>
<!-- Generated by Doxygen 1.5.4 -->
<script type="text/javascript">
<!--
function changeDisplayState (e){
  var num=this.id.replace(/[^[0-9]/g,'');
  var button=this.firstChild;
  var sectionDiv=document.getElementById('dynsection'+num);
  if (sectionDiv.style.display=='none'||sectionDiv.style.display==''){
    sectionDiv.style.display='block';
    button.src='open.gif';
  }else{
    sectionDiv.style.display='none';
    button.src='closed.gif';
  }
}
function initDynSections(){
  var divs=document.getElementsByTagName('div');
  var sectionCounter=1;
  for(var i=0;i<divs.length-1;i++){
    if(divs[i].className=='dynheader'&&divs[i+1].className=='dynsection'){
      var header=divs[i];
      var section=divs[i+1];
      var button=header.firstChild;
      if (button!='IMG'){
        divs[i].insertBefore(document.createTextNode(' '),divs[i].firstChild);
        button=document.createElement('img');
        divs[i].insertBefore(button,divs[i].firstChild);
      }
      header.style.cursor='pointer';
      header.onclick=changeDisplayState;
      header.id='dynheader'+sectionCounter;
      button.src='closed.gif';
      section.id='dynsection'+sectionCounter;
      section.style.display='none';
      section.style.marginLeft='14px';
      sectionCounter++;
    }
  }
}
window.onload = initDynSections;
-->
</script>
<div class="tabs">
  <ul>
    <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>
    <li><a href="modules.html"><span>Modules</span></a></li>
    <li><a href="classes.html"><span>Data&nbsp;Structures</span></a></li>
    <li class="current"><a href="files.html"><span>Files</span></a></li>
    <li><a href="pages.html"><span>Related&nbsp;Pages</span></a></li>
  </ul>
</div>
<h1>webclient.c</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*********************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"></span>
<a name="l00003"></a>00003 <span class="comment"> Copyright 2006 MakingThings</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment"> Licensed under the Apache License, </span>
<a name="l00006"></a>00006 <span class="comment"> Version 2.0 (the "License"); you may not use this file except in compliance </span>
<a name="l00007"></a>00007 <span class="comment"> with the License. You may obtain a copy of the License at</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> http://www.apache.org/licenses/LICENSE-2.0 </span>
<a name="l00010"></a>00010 <span class="comment"> </span>
<a name="l00011"></a>00011 <span class="comment"> Unless required by applicable law or agreed to in writing, software distributed</span>
<a name="l00012"></a>00012 <span class="comment"> under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR</span>
<a name="l00013"></a>00013 <span class="comment"> CONDITIONS OF ANY KIND, either express or implied. See the License for</span>
<a name="l00014"></a>00014 <span class="comment"> the specific language governing permissions and limitations under the License.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">*********************************************************************************/</span>
<a name="l00017"></a>00017 
<a name="l00018"></a>00018 <span class="preprocessor">#include "config.h"</span> <span class="comment">// MakingThings.</span>
<a name="l00019"></a>00019 <span class="preprocessor">#ifdef MAKE_CTRL_NETWORK</span>
<a name="l00020"></a>00020 <span class="preprocessor"></span>
<a name="l00021"></a>00021 <span class="preprocessor">#include "stdlib.h"</span>
<a name="l00022"></a>00022 <span class="preprocessor">#include "string.h"</span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
<a name="l00024"></a>00024 <span class="preprocessor">#include "webclient.h"</span>
<a name="l00025"></a>00025 
<a name="l00026"></a>00026 <span class="preprocessor">#define WEBCLIENT_INTERNAL_BUFFER_SIZE 200</span>
<a name="l00027"></a>00027 <span class="preprocessor"></span><span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">/** \defgroup webclient Web Client</span>
<a name="l00029"></a>00029 <span class="comment">  A very simple web client for HTTP operations.</span>
<a name="l00030"></a>00030 <span class="comment"></span>
<a name="l00031"></a>00031 <span class="comment">  The web client system allows the Make Controller to get/post data to a webserver.  This</span>
<a name="l00032"></a>00032 <span class="comment">  makes it straightforward to use the Make Controller as a source of data for your web apps.</span>
<a name="l00033"></a>00033 <span class="comment"></span>
<a name="l00034"></a>00034 <span class="comment">  There's currently not a method provided for name resolution - you can always ping the </span>
<a name="l00035"></a>00035 <span class="comment">  server you want to communicate with to see its IP address, and just use that.</span>
<a name="l00036"></a>00036 <span class="comment"></span>
<a name="l00037"></a>00037 <span class="comment">  \todo Get a DNS solution together.</span>
<a name="l00038"></a>00038 <span class="comment"></span>
<a name="l00039"></a>00039 <span class="comment">  \ingroup Controller</span>
<a name="l00040"></a>00040 <span class="comment">  @{</span>
<a name="l00041"></a>00041 <span class="comment">*/</span>
<a name="l00042"></a>00042 <span class="comment"></span>
<a name="l00043"></a>00043 <span class="comment">/** </span>
<a name="l00044"></a>00044 <span class="comment">  Performs an HTTP GET operation to the path at the address / port specified.  Note that this</span>
<a name="l00045"></a>00045 <span class="comment">  uses lots of printf style functions and may require a fair amount of memory to be allocated</span>
<a name="l00046"></a>00046 <span class="comment">  to the task calling it.</span>
<a name="l00047"></a>00047 <span class="comment">  The result is returned in the specified buffer.</span>
<a name="l00048"></a>00048 <span class="comment">  @param address The IP address of the server to get from.  Usually created using the IP_ADDRESS( ) macro.</span>
<a name="l00049"></a>00049 <span class="comment">  @param port The port to connect on.  Usually 80 for HTTP.</span>
<a name="l00050"></a>00050 <span class="comment">  @param hostname A string specifying the name of the host to connect to.  When connecting to a server</span>
<a name="l00051"></a>00051 <span class="comment">  that does shared hosting, this will specify who to connect with.</span>
<a name="l00052"></a>00052 <span class="comment">  @param path The path on the server to connect to.</span>
<a name="l00053"></a>00053 <span class="comment">  @param buffer A pointer to the buffer read back into.  </span>
<a name="l00054"></a>00054 <span class="comment">  @param buffer_size An integer specifying the actual size of the buffer.</span>
<a name="l00055"></a>00055 <span class="comment">  @return the number of bytes read, or &lt; 0 on error.</span>
<a name="l00056"></a>00056 <span class="comment"></span>
<a name="l00057"></a>00057 <span class="comment">  \par Example</span>
<a name="l00058"></a>00058 <span class="comment">  \code</span>
<a name="l00059"></a>00059 <span class="comment">  int addr = IP_ADDRESS( 72, 249, 53, 185); // makingthings.com is 72.249.53.185</span>
<a name="l00060"></a>00060 <span class="comment">  int bufLength = 100;</span>
<a name="l00061"></a>00061 <span class="comment">  char myBuffer[bufLength];</span>
<a name="l00062"></a>00062 <span class="comment">  int getSize = WebClient_Get( addr, 80, "www.makingthings.com", "/test/path", myBuffer, bufLength );</span>
<a name="l00063"></a>00063 <span class="comment">  \endcode</span>
<a name="l00064"></a>00064 <span class="comment">  Now we should have the results of the HTTP GET from \b www.makingthings.com/test/path in \b myBuffer.</span>
<a name="l00065"></a>00065 <span class="comment">*/</span>
<a name="l00066"></a><a class="code" href="group__webclient.html#ge6d303d67a7adfe38b34873dba7e2e39">00066</a> <span class="keywordtype">int</span> <a class="code" href="group__webclient.html#ge6d303d67a7adfe38b34873dba7e2e39" title="Performs an HTTP GET operation to the path at the address / port specified.">WebClient_Get</a>( <span class="keywordtype">int</span> address, <span class="keywordtype">int</span> port, <span class="keywordtype">char</span>* hostname, <span class="keywordtype">char</span>* path, <span class="keywordtype">char</span>* buffer, <span class="keywordtype">int</span> buffer_size )
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068   <span class="keywordtype">char</span> b[ WEBCLIENT_INTERNAL_BUFFER_SIZE ];
<a name="l00069"></a>00069   <span class="keywordtype">int</span> buffer_read = 0;
<a name="l00070"></a>00070   <span class="keywordtype">void</span>* s = <a class="code" href="group___sockets.html#g7e4b76e6d4a93aa7c281e5cbba6cc584" title="Create a new TCP socket connected to the address and port specified.">Socket</a>( address, port );  
<a name="l00071"></a>00071   <span class="keywordflow">if</span> ( s != NULL )
<a name="l00072"></a>00072   {
<a name="l00073"></a>00073     <span class="keywordtype">int</span> send_len = snprintf( b, WEBCLIENT_INTERNAL_BUFFER_SIZE, <span class="stringliteral">"GET %s HTTP/1.1\r\n%s%s%s\r\n"</span>, 
<a name="l00074"></a>00074                                 path,
<a name="l00075"></a>00075                                 ( hostname != NULL ) ? <span class="stringliteral">"Host: "</span> : <span class="stringliteral">""</span>,
<a name="l00076"></a>00076                                 ( hostname != NULL ) ? hostname : <span class="stringliteral">""</span>,
<a name="l00077"></a>00077                                 ( hostname != NULL ) ? <span class="stringliteral">"\r\n"</span> : <span class="stringliteral">""</span>  );
<a name="l00078"></a>00078     <span class="keywordflow">if</span> ( send_len &gt; WEBCLIENT_INTERNAL_BUFFER_SIZE )
<a name="l00079"></a>00079     {
<a name="l00080"></a>00080       <a class="code" href="group___sockets.html#geab922d85a99bd7577f5e5b54628a5b4" title="Close an existing TCP socket.">SocketClose</a>( s );
<a name="l00081"></a>00081       <span class="keywordflow">return</span> <a class="code" href="group___error.html#g2cd3e8ce9b1d59bb5bf2972ab35a8b48" title="Not enough memory available.">CONTROLLER_ERROR_INSUFFICIENT_RESOURCES</a>;
<a name="l00082"></a>00082     }
<a name="l00083"></a>00083 
<a name="l00084"></a>00084     <a class="code" href="group___sockets.html#g1031bc0757e65ea265deb5dc3ded3029" title="Write to a TCP socket.">SocketWrite</a>( s, b, send_len );
<a name="l00085"></a>00085     <span class="keywordtype">int</span> content_length = 0;
<a name="l00086"></a>00086     
<a name="l00087"></a>00087     <span class="keywordtype">int</span> buffer_length;
<a name="l00088"></a>00088     <span class="keywordflow">while</span> ( ( buffer_length = <a class="code" href="group___sockets.html#gabf4d267c62d67bd596a22daea799662" title="Read a line from a TCP socket terminated by CR LF (0x0D 0x0A).">SocketReadLine</a>( s, b, WEBCLIENT_INTERNAL_BUFFER_SIZE ) ) )
<a name="l00089"></a>00089     {
<a name="l00090"></a>00090       <span class="keywordflow">if</span> ( strncmp( b, <span class="stringliteral">"\r\n"</span>, 2 ) == 0 )
<a name="l00091"></a>00091         <span class="keywordflow">break</span>;
<a name="l00092"></a>00092       <span class="keywordflow">if</span> ( strncmp( b, <span class="stringliteral">"Content-Length"</span>, 14 ) == 0 )
<a name="l00093"></a>00093         content_length = atoi( &amp;b[ 15 ] );
<a name="l00094"></a>00094     }
<a name="l00095"></a>00095     
<a name="l00096"></a>00096     <span class="keywordflow">if</span> ( content_length &gt; 0 &amp;&amp; buffer_length &gt; 0 )
<a name="l00097"></a>00097     {
<a name="l00098"></a>00098       <span class="keywordtype">char</span>* bp = buffer;
<a name="l00099"></a>00099       <span class="keywordflow">while</span> ( ( buffer_length = <a class="code" href="group___sockets.html#g838d1ceaf477b3496a9fe4adf8d28147" title="Read from a TCP socket.">SocketRead</a>( s, bp, buffer_size - buffer_read ) ) )
<a name="l00100"></a>00100       {
<a name="l00101"></a>00101         buffer_read += buffer_length;
<a name="l00102"></a>00102         bp += buffer_length;
<a name="l00103"></a>00103         <span class="keywordflow">if</span> ( buffer_read &gt;= content_length )
<a name="l00104"></a>00104           <span class="keywordflow">break</span>;
<a name="l00105"></a>00105       }
<a name="l00106"></a>00106     }
<a name="l00107"></a>00107           
<a name="l00108"></a>00108     <a class="code" href="group___sockets.html#geab922d85a99bd7577f5e5b54628a5b4" title="Close an existing TCP socket.">SocketClose</a>( s );
<a name="l00109"></a>00109     <span class="keywordflow">return</span> buffer_read;
<a name="l00110"></a>00110   }
<a name="l00111"></a>00111   <span class="keywordflow">else</span>
<a name="l00112"></a>00112     <span class="keywordflow">return</span> <a class="code" href="group___error.html#g2be559398e755ed852ac38d0670d4692" title="Address is not valid.">CONTROLLER_ERROR_BAD_ADDRESS</a>;
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114 <span class="comment"></span>
<a name="l00115"></a>00115 <span class="comment">/** </span>
<a name="l00116"></a>00116 <span class="comment">  Performs an HTTP POST operation to the path at the address / port specified.  The actual post contents </span>
<a name="l00117"></a>00117 <span class="comment">  are found read from a given buffer and the result is returned in the same buffer.</span>
<a name="l00118"></a>00118 <span class="comment">  @param address The IP address of the server to post to.</span>
<a name="l00119"></a>00119 <span class="comment">  @param port The port on the server you're connecting to. Usually 80 for HTTP.</span>
<a name="l00120"></a>00120 <span class="comment">  @param hostname A string specifying the name of the host to connect to.  When connecting to a server</span>
<a name="l00121"></a>00121 <span class="comment">  that does shared hosting, this will specify who to connect with.</span>
<a name="l00122"></a>00122 <span class="comment">  @param path The path on the server to post to.</span>
<a name="l00123"></a>00123 <span class="comment">  @param buffer A pointer to the buffer to write from and read back into.  </span>
<a name="l00124"></a>00124 <span class="comment">  @param buffer_length An integer specifying the number of bytes to write.</span>
<a name="l00125"></a>00125 <span class="comment">  @param buffer_size An integer specifying the actual size of the buffer.</span>
<a name="l00126"></a>00126 <span class="comment">  @return status.</span>
<a name="l00127"></a>00127 <span class="comment"></span>
<a name="l00128"></a>00128 <span class="comment">  \par Example</span>
<a name="l00129"></a>00129 <span class="comment">  \code</span>
<a name="l00130"></a>00130 <span class="comment">  // we'll post a test message to www.makingthings.com/post/path</span>
<a name="l00131"></a>00131 <span class="comment">  int addr = IP_ADDRESS( 72, 249, 53, 185); // makingthings.com is 72.249.53.185</span>
<a name="l00132"></a>00132 <span class="comment">  int bufLength = 100;</span>
<a name="l00133"></a>00133 <span class="comment">  char myBuffer[bufLength];</span>
<a name="l00134"></a>00134 <span class="comment">  sprintf( myBuffer, "A test message to post" );</span>
<a name="l00135"></a>00135 <span class="comment">  int result = WebClient_Post( addr, 80, "www.makingthings.com", "/post/path", </span>
<a name="l00136"></a>00136 <span class="comment">                                    myBuffer, strlen("A test message to post"), bufLength );</span>
<a name="l00137"></a>00137 <span class="comment">  \endcode</span>
<a name="l00138"></a>00138 <span class="comment">*/</span>
<a name="l00139"></a><a class="code" href="group__webclient.html#gac46f29396f4689c6d7e2b0cbfa13b4f">00139</a> <span class="keywordtype">int</span> <a class="code" href="group__webclient.html#gac46f29396f4689c6d7e2b0cbfa13b4f" title="Performs an HTTP POST operation to the path at the address / port specified.">WebClient_Post</a>( <span class="keywordtype">int</span> address, <span class="keywordtype">int</span> port, <span class="keywordtype">char</span>* path, <span class="keywordtype">char</span>* hostname, <span class="keywordtype">char</span>* buffer, <span class="keywordtype">int</span> buffer_length, <span class="keywordtype">int</span> buffer_size )
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141   <span class="keywordtype">char</span> b[ WEBCLIENT_INTERNAL_BUFFER_SIZE ];
<a name="l00142"></a>00142   <span class="keywordtype">int</span> buffer_read = 0;
<a name="l00143"></a>00143   <span class="keywordtype">int</span> wrote = 0;
<a name="l00144"></a>00144   <span class="keywordtype">void</span>* s = <a class="code" href="group___sockets.html#g7e4b76e6d4a93aa7c281e5cbba6cc584" title="Create a new TCP socket connected to the address and port specified.">Socket</a>( address, port );  
<a name="l00145"></a>00145   <span class="keywordflow">if</span> ( s != NULL )
<a name="l00146"></a>00146   { 
<a name="l00147"></a>00147     <span class="keywordtype">int</span> send_len = snprintf( b, WEBCLIENT_INTERNAL_BUFFER_SIZE, 
<a name="l00148"></a>00148                                 <span class="stringliteral">"POST %s HTTP/1.1\r\n%s%s%sContent-Type: text/plain\r\nContent-Length: %d\r\n\r\n"</span>, 
<a name="l00149"></a>00149                                 path, 
<a name="l00150"></a>00150                                 ( hostname != NULL ) ? <span class="stringliteral">"Host: "</span> : <span class="stringliteral">""</span>,
<a name="l00151"></a>00151                                 ( hostname != NULL ) ? hostname : <span class="stringliteral">""</span>,
<a name="l00152"></a>00152                                 ( hostname != NULL ) ? <span class="stringliteral">"\r\n"</span> : <span class="stringliteral">""</span>,
<a name="l00153"></a>00153                                 buffer_length );
<a name="l00154"></a>00154     <span class="keywordflow">if</span> ( send_len &gt; WEBCLIENT_INTERNAL_BUFFER_SIZE )
<a name="l00155"></a>00155     {
<a name="l00156"></a>00156       <a class="code" href="group___sockets.html#geab922d85a99bd7577f5e5b54628a5b4" title="Close an existing TCP socket.">SocketClose</a>( s );
<a name="l00157"></a>00157       <span class="keywordflow">return</span> <a class="code" href="group___error.html#g2cd3e8ce9b1d59bb5bf2972ab35a8b48" title="Not enough memory available.">CONTROLLER_ERROR_INSUFFICIENT_RESOURCES</a>;
<a name="l00158"></a>00158     }
<a name="l00159"></a>00159 
<a name="l00160"></a>00160     wrote = <a class="code" href="group___sockets.html#g1031bc0757e65ea265deb5dc3ded3029" title="Write to a TCP socket.">SocketWrite</a>( s, b, send_len );
<a name="l00161"></a>00161     <span class="keywordflow">if</span> ( wrote == 0 )
<a name="l00162"></a>00162     {
<a name="l00163"></a>00163       <a class="code" href="group___sockets.html#geab922d85a99bd7577f5e5b54628a5b4" title="Close an existing TCP socket.">SocketClose</a>( s );
<a name="l00164"></a>00164       <span class="keywordflow">return</span> <a class="code" href="group___error.html#g34e5fdb1fb03c91af6780755b46268f0" title="A requested write was unsuccessful.">CONTROLLER_ERROR_WRITE_FAILED</a>;
<a name="l00165"></a>00165     }
<a name="l00166"></a>00166 
<a name="l00167"></a>00167     <a class="code" href="group___sockets.html#g1031bc0757e65ea265deb5dc3ded3029" title="Write to a TCP socket.">SocketWrite</a>( s, buffer, buffer_length );
<a name="l00168"></a>00168     
<a name="l00169"></a>00169     <span class="keywordtype">int</span> content_length = 0;
<a name="l00170"></a>00170     <span class="keywordtype">int</span> b_len;
<a name="l00171"></a>00171     <span class="keywordflow">while</span> ( ( b_len = <a class="code" href="group___sockets.html#gabf4d267c62d67bd596a22daea799662" title="Read a line from a TCP socket terminated by CR LF (0x0D 0x0A).">SocketReadLine</a>( s, b, WEBCLIENT_INTERNAL_BUFFER_SIZE ) ) )
<a name="l00172"></a>00172     {
<a name="l00173"></a>00173       <span class="keywordflow">if</span> ( strncmp( b, <span class="stringliteral">"\r\n"</span>, 2 ) == 0 )
<a name="l00174"></a>00174         <span class="keywordflow">break</span>;
<a name="l00175"></a>00175       <span class="keywordflow">if</span> ( strncmp( b, <span class="stringliteral">"Content-Length"</span>, 14 ) == 0 )
<a name="l00176"></a>00176         content_length = atoi( &amp;b[ 16 ] );
<a name="l00177"></a>00177     }
<a name="l00178"></a>00178           
<a name="l00179"></a>00179     <span class="keywordflow">if</span> ( content_length &gt; 0 &amp;&amp; b_len &gt; 0 )
<a name="l00180"></a>00180     {
<a name="l00181"></a>00181       <span class="keywordtype">char</span>* bp = buffer;
<a name="l00182"></a>00182       <span class="keywordflow">while</span> ( ( b_len = <a class="code" href="group___sockets.html#g838d1ceaf477b3496a9fe4adf8d28147" title="Read from a TCP socket.">SocketRead</a>( s, bp, buffer_size - buffer_read ) ) )
<a name="l00183"></a>00183       {
<a name="l00184"></a>00184         buffer_read += b_len;
<a name="l00185"></a>00185         bp += b_len;
<a name="l00186"></a>00186         <span class="keywordflow">if</span> ( buffer_read &gt;= content_length )
<a name="l00187"></a>00187           <span class="keywordflow">break</span>;
<a name="l00188"></a>00188       }
<a name="l00189"></a>00189     }          
<a name="l00190"></a>00190 
<a name="l00191"></a>00191     <a class="code" href="group___sockets.html#geab922d85a99bd7577f5e5b54628a5b4" title="Close an existing TCP socket.">SocketClose</a>( s );
<a name="l00192"></a>00192     <span class="keywordflow">return</span> buffer_read;
<a name="l00193"></a>00193   }
<a name="l00194"></a>00194   <span class="keywordflow">else</span>
<a name="l00195"></a>00195     <span class="keywordflow">return</span> <a class="code" href="group___error.html#g2be559398e755ed852ac38d0670d4692" title="Address is not valid.">CONTROLLER_ERROR_BAD_ADDRESS</a>;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197 
<a name="l00198"></a>00198 <span class="preprocessor">#endif // MAKE_CTRL_NETWORK</span>
<a name="l00199"></a>00199 <span class="preprocessor"></span>
<a name="l00200"></a>00200 
<a name="l00201"></a>00201 
</pre></div><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Make Controller Kit</title>
<style type="text/css">
<!--
.footer {
	font-family: Verdana, Arial, Helvetica, sans-serif;
	font-size: 9pt;
	color: #999999;
}
-->
</style>
</head>

<body>
<hr size="1">
<div>
  <p class="footer">The Make Controller Kit is an open source project maintained by <a href="http://www.makingthings.com">MakingThings</a>.<br />
    MakingThings code is released under the <a href="http://www.apache.org/licenses/LICENSE-2.0.html" target="_blank">Apache 2.0 license</a>.<br />
    Bug tracker, development wiki and status can be found at <a href="http://dev.makingthings.com">http://dev.makingthings.com</a>.<br />
		This document was last updated on 21 Dec 2007.
</p>
</div>
<!-- Google Analytics Code -->
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-769030-1";
urchinTracker();
</script>
</body>
</html>
